Stadium: Center Court Round: 46 Ground: Hardcourt indoor
| Challenger Kobe | 2018/11/10 05:15 | Takuto Niki v Taisei Ichikawa | 6-2,6-7,3-6 |
| ITF Japan F5 | 2018/04/06 01:00 | Zhe Li v Taisei Ichikawa | 6-2,7-6 |
| ITF Japan F5 | 2018/04/04 01:00 | Taisei Ichikawa v Renta Tokuda | 6-3,6-3 |
| ITF Japan F5 | 2018/04/03 01:00 | Shao-Fan Liu v Taisei Ichikawa | 6-7,0-6 |
| ITF Japan F8 | 2017/06/14 03:00 | Katsuki Nagao v Taisei Ichikawa | 6-0,6-1 |
| ITF Japan F8 | 2017/06/11 00:00 | Kazuma Kawachi v Taisei Ichikawa | 6-2,5-7,2-6 |
| ITF Japan F8 | 2017/06/10 00:00 | Kousuke Ogura v Taisei Ichikawa | 2-6,2-6 |
| Challenger Kobe | 2018/11/10 07:35 | Itsuki Matsumoto v Colin Sinclair | 4-6,1-6 |
| Challenger Canberra 2 | 2018/10/26 23:50 | Colin Sinclair v Harry Bourchier | 2-6,4-6 |
| Challenger Traralgon | 2018/10/21 23:00 | Yosuke Watanuki v Colin Sinclair | 6-3,7-5 |
| Challenger Traralgon | 2018/10/21 05:00 | Moerani Bouzige v Colin Sinclair | 4-6,1-6 |
| Challenger Traralgon | 2018/10/21 01:50 | Calum Puttergill v Colin Sinclair | 4-6,1-6 |
| ITF Australia F8 | 2018/10/14 03:45 | Maverick Banes v Colin Sinclair | 6-4,6-2 |
| ITF Australia F8 | 2018/10/14 00:00 | Hiroyasu Ehara v Colin Sinclair | 6-2,1-6,3-6 |
| ITF Australia F8 | 2018/10/12 01:15 | Colin Sinclair v Kuan-Yi Lee | 6-1,6-2 |